– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 am Tue 23 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 am Tue 23 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Tue 23 Dec Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryHeavy rain (total 35mm), heaviest during Thu afternoon. Mild temperatures (max 7°C on Wed morning, min 1°C on Tue morning). Winds decreasing (fresh winds from the S on Wed afternoon, calm by Thu morning). | Days 4–6 Weather SummaryLight rain (total 3mm) at first, then becoming colder with a dusting of snow on Fri morning. Freeze-thaw conditions (max 4°C on Sun morning, min -2°C on Fri night). Wind will be generally light. | |||||||||||||||||
Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | | |  |  |  | |  | | | |  | | | |
some clouds | cloudy | light rain | light rain | mod. rain | light rain | light rain | heavy rain | heavy rain | light snow | cloudy | some clouds | some clouds | some clouds | some clouds | clear | some clouds | some clouds | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | |
— | — | 0.2 | 4 | 8 | 0.3 | 0.2 | 13 | 10 | 3 | — | — | — | — | — | — | — | — | |
max °C | 3 | 2 | 5 | 7 | 6 | 4 | 6 | 3 | 3 | 3 | 1 | -1 | 1 | 1 | -1 | 4 | 3 | 3 |
min °C | 1 | 1 | 2 | 6 | 5 | 3 | 6 | 3 | 3 | 2 | 0 | -2 | 0 | 0 | -2 | 2 | 2 | 3 |
-2 | -1 | 0 | 3 | 0 | 2 | 5 | 2 | 1 | 0 | -2 | -2 | 0 | 0 | -2 | 2 | 2 | 3 | |
700 | 850 | 1450 | 2250 | 1700 | 1200 | 1850 | 1200 | 1000 | 1000 | 650 | 0 | 500 | 600 | 0 | 1650 | 2250 | 2500 | |
Cloud base (m) | 550 | 550 | 2400 | 1800 | 1500 | 650 | 1950 | 1400 | 550 | 550 | 550 | 700 | 600 | 600 | 800 | 650 | 600 | 600 |
 | 7:58 | — | — | 7:58 | — | — | 7:58 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — |
 | — | 4:15 | — | — | 4:15 | — | — | 4:15 | — | — | 4:16 | — | — | 4:17 | — | — | 4:17 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Heavy rain (total 35mm), heaviest during Thu afternoon. Mild temperatures (max 7°C on Wed morning, min 1°C on Tue morning). Winds decreasing (fresh winds from the S on Wed afternoon, calm by Thu morning).
South Twin Sister Weather (Days 3-6):
Light rain (total 3mm) at first, then becoming colder with a dusting of snow on Fri morning. Freeze-thaw conditions (max 4°C on Sun morning, min -2°C on Fri night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.